TY  - JOUR
AU  - G. E. Mints
TI  - Solvability of the problem of deducibility in LJ for a class of formulas which do not contain negative occurrences of quantors
JO  - Informatics and Automation
PY  - 1968
SP  - 121
EP  - 130
VL  - 98
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1968_98_a5/
LA  - ru
ID  - TRSPY_1968_98_a5
ER  -